The dividend on the Series D and Series E is for the period from the most recent dividend payment date on May 28, 2017 through August 27, 2017.

The dividend on the Series D and E Preferred Shares will be paid on August 28, 2017 to all holders of record of Series D and E Preferred Shares as of August 23, 2017. Dividends on the Series D and E Preferred Shares are payable quarterly in arrears on the 28th day (unless the 28th falls on a weekend or public holiday, in which case the payment date is moved to the next business day) of February, May, August and November of each year, when, as and if declared by TEN's board of directors. This is the ninth dividend on the Series D and the second dividend on the Series E since their commencement of trading on the New York Stock Exchange.

TEN has 3,424,803 Series D and 4,600,000 Series E Preferred Shares outstanding as of the date of this press release.

ABOUT TSAKOS ENERGY NAVIGATIONTEN, founded in 1993, is one of the first and most established public shipping companies in the world today. TEN's pro-forma fleet, including one Aframax tanker under construction, consists of 65 double-hull vessels, constituting a mix of crude tankers, product tankers and LNG carriers, totalling 7.2 million dwt. Of these, 45 vessels trade in crude, 15 in products, three are shuttle tankers and two are LNG carriers.

ABOUT FORWARD-LOOKING STATEMENTS Except for the historical information contained herein, the matters discussed in this press release are forward-looking statements that involve risks and uncertainties that could cause actual results to differ materially from those predicted by such forward-looking statements. TEN undertakes no obligation to publicly update any forward-looking statement, whether as a result of new information, future events, or otherwise.